#ifndef _FLIGHT_H_
#define _FLIGHT_H_
#include "element.h"

void showFlightNode(FlightNode *head);
void addFlightInformation(FlightNode *head);
void searchFlightInformation(FlightNode *head);
void modifyFlightInformation(FlightNode *head);
void deleteFlightInformation(FlightNode *head);
void sortFlightInformation(FlightNode *head);
void buyTicket(FlightNode *head, UserData *user);
void refundTicket(FlightNode *head, UserData *user);
long long convertTimeType(char *time);


#endif